315323501 has 2 divisors, whose sum is σ = 315323502. Its totient is φ = 315323500.

The previous prime is 315323471. The next prime is 315323549. The reversal of 315323501 is 105323513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161315401 + 154008100 = 12701^2 + 12410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315323501 is a prime.

It is a super-3 number, since 3×315323501³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315323551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157661750 + 157661751.

It is an arithmetic number, because the mean of its divisors is an integer number (157661751).

Almost surely, 2^315323501 is an apocalyptic number.

It is an amenable number.

315323501 is a deficient number, since it is larger than the sum of its proper divisors (1).

315323501 is an equidigital number, since it uses as much as digits as its factorization.

315323501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 315323501 is about 17757.3506188282. The cubic root of 315323501 is about 680.6420557776.

The spelling of 315323501 in words is "three hundred fifteen million, three hundred twenty-three thousand, five hundred one".